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CardioVascular and Interventional Radiology

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01-12-2015 | Clinical Investigation

Intraprocedural 3D Quantification of Lipiodol Deposition on Cone-Beam CT Predicts Tumor Response After Transarterial Chemoembolization in Patients with Hepatocellular Carcinoma

Authors: Zhijun Wang, Rongxin Chen, Rafael Duran, Yan Zhao, Gayane Yenokyan, Julius Chapiro, Rüdiger Schernthaner, Alessandro Radaelli, MingDe Lin, Jean-François Geschwind

Published in: CardioVascular and Interventional Radiology | Issue 6/2015

Abstract

Purpose

To evaluate whether intraprocedural 3D quantification of Lipiodol deposition on cone-beam computed tomography (CBCT) can predict tumor response on follow-up contrast-enhanced magnetic resonance imaging (CE-MRI) in patients with hepatocellular carcinoma (HCC) treated with conventional transarterial chemoembolization (cTACE).

Materials and Methods

This IRB approved, retrospective analysis included 36 patients with 51 HCC target lesions, who underwent cTACE with CBCT. CE-MRI was acquired at baseline and 1 month after cTACE. Overall tumor volumes as well as intratumoral Lipiodol volumes on CBCT were measured and compared with the overall and necrotic (non-enhancing) tumor volumes on CE-MRI using the paired student’s t test. Tumor response on CE-MRI was assessed using modified response evaluation criteria in solid tumors (mRECIST). A linear regression model was used to correlate tumor volumes, Lipiodol volumes, and the percentage of Lipiodol deposition on CBCT with the corresponding parameters on CE-MRI. Nonparametric spearman rank-order correlation and trend test were used to correlate the percentage of Lipiodol deposition in the tumor with tumor response.

Result

A strong correlation between overall tumor volumes on CBCT and CE-MRI was observed (R ² = 0.986). In addition, a strong correlation was obtained between the volume of Lipiodol deposition on CBCT and tumor necrosis (in cm³) on CE-MRI (R ² = 0.960), and between the percentage of Lipiodol deposition and tumor necrosis (R ² = 0.979). Importantly, the extent of Lipiodol deposition (in percentage of total tumor volume) correlated strongly with tumor response on CE-MRI (Spearman rho = 0.84, p < 0.001).

Conclusions

Intraprocedural 3D quantification of Lipiodol deposition on CBCT can be used to predict tumor response on follow-up CE-MRI.

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Title: Intraprocedural 3D Quantification of Lipiodol Deposition on Cone-Beam CT Predicts Tumor Response After Transarterial Chemoembolization in Patients with Hepatocellular Carcinoma
Authors: Zhijun Wang
Rongxin Chen
Rafael Duran
Yan Zhao
Gayane Yenokyan
Julius Chapiro
Rüdiger Schernthaner
Alessandro Radaelli
MingDe Lin
Jean-François Geschwind
Publication date: 01-12-2015
Publisher: Springer US
Published in: CardioVascular and Interventional Radiology / Issue 6/2015
Print ISSN: 0174-1551
Electronic ISSN: 1432-086X
DOI: https://doi.org/10.1007/s00270-015-1129-9

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Intraprocedural 3D Quantification of Lipiodol Deposition on Cone-Beam CT Predicts Tumor Response After Transarterial Chemoembolization in Patients with Hepatocellular Carcinoma

Abstract

Purpose

Materials and Methods

Result

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Purpose

Materials and Methods

Result

Conclusions

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